Spring-seat



H. E. GYNN.

SPRING SEAT.

APPLICATION FILED NOV. 22, 1919.

1,355,225, Patented Oct. 12,1920.

fnyenfor.

By W

UNITED STATES HAr'rm'E. G-YNN, or CLEVELAND HEIGHTS, OHIO.

. seams-sitar.

Specification of Letters Patent.

Patented Oct. 12, 1920.

Application filed lIovember 22, 1919. Serial No. 339,814.

T all whom it may concern Be it known that I, HATTIE E. GYNN, a citizen of the United States, and residing at Cleveland Heights, in the county of Cuyahoga and State of Ohio,,have invented a new and useful Spring-Seat, of which the following is a specification.

' This invention relates to improvements in spring-seats, and pertains more especially to a spring-seat comprising two vertically spaced and tially horizontal plates the lower of which is adapted to be carried by a supporting member, and also comprising springs em- 5 ployed in supporting the upper plate from the lower plate, and furthermore comprising means for guiding the upper plate relatively to the lower plate and positively preventing rotary movement in a horizontal plane and lateral movement and forward and rearward movement of the upper plate independently of the lower plate.

The object of this invention is to have said guiding means independent of the hereinbefore mentioned springs, to avoid the projection below said lower plate of any component member of said guiding means, to have said guiding means permit descent of the hereinbefore mentioned upper plate against the action of said springs without the movement of any portion of said means below the aforesaid lower plate, to render said guiding means simple and durable in construction, and to facilitate the assemblage of the component members of said guiding means.

With this object in view, and to attain any other object hereinafter appearing, this invention consists in certain features ,of construction, and combinations and relative arrangements of parts, hereinafter described in this specification, pointed out in the claims, and illustrated in the accompanying drawings.

In said drawings, Figure 1 is a side elevation in central vertical section of a springseat embodying my invention. Fig. 2 is a horizontal section taken along the line 2-2, Fig. 1, looking downwardly. Fig.3 is a vertical section, in detail, taken along the line 3-3, Fig. 2,1o0king outwardly. Fig. 4

is a vertical section taken along the line 4-4, Fig. 3, looking in the direction indi-' cated by the arrow.

Referring to said drawings, 5 indicates the upper portion of a bracket adapted to be oppositely arranged substan I the plate carrying carried by the framework or body of a tractor or other vehicle or machine, and said bracket has a rearwardly projecting arm 6v on which my improved seat is shown mounted. Said seat comprises two vertically spaced and directly oppositely arranged substantially horizontal metal plates 7 the lower of which is shown mounted directly on the bracket-arm- 6 and secured to said arm in any approved manner. The seat illustrated comprises an even number of substantially vertically arranged corresponding helical springs 8 interposed between the plates 7 and spaced circumferentially of the space between the central portions of said plates and supporting the upper plate from the lower plate. The seat-proper 9 is mounted on the upper plate and secured to said plate in any approved manner.

My improved seat comprises two pairs of substantially vertical and laterally facing cooperating metal guiding members 10 which are secured the one to the upper of the plates 7 and the other to the lower of said plates. Preferably said pairs of guiding members are arranged at opposite sides respectively of the space between. the oentral portions of the plates 7 and wholly between said plates.

Each member of each pair of guiding members 10 projects from the plate carrying it toward the other plate and is spaced at its free endfrom the lastmentioned plate, and said guiding members are movable endwise independently of each other. It will be observed, therefore that.

one member of each pair of guiding members 10 projects vertically downwardly from the upper plate, and the other member of said pair of guiding members projects vertically upwardly from the lower plate, and the free end portions of said guiding members are arranged side by side and in close proximity to each other. Preferably each member of-each pair of guiding members '10 has one, side of its free end portion overlapping one side of the free end portion of the other member of said pair of guiding members centrally between. said plates. One member of each pair of guiding members 10 is provided between its free end and extends substantially vertically and consequently endwise-of said guiding member, and said slot, (see Figs. '3 and 4) has side walls 13 and an end wall 14 which faces said plate, and the other of said guiding it with a slot 12 which pairs of guiding members 10, and the projections 15 are formed on the upper members of said pairs of guiding members. In the upper and normal position of the upper plate the springs 8 are somewhatcompressed and under tension, so that the projections 15 bear againstthe end walls 14 of the slots 12. The relative arrangement of the parts is such that said end walls of said slots and said projections are arranged between and adequately spaced from both plates 7 and constitute means for preventing movement of the guiding members of the upper plate upwardly independently of the guiding members of thelower plate and consequently prevent said plates from moving relatively to increase the distance between them, but

obviously said plates are relatively movable against the action of the spring 8, to reduce the distance between the plates. The side walls 13 of the slots 12 and'the projections 15 are arranged to constitute means for preventing movement of the upper plate forwardly and rearwardly independently of the lower plate, and said'projections and said side walls of said slots also constitute means for preventing rotary movement in a horizontal plane of the upper plate independently of the lower plate. Each guiding member 10 has 'a \rearwardly and forwardly facing flange 16 which extends endwise and, preferably from end to end of said guiding member, and the flanges 16 of the members of'each pair of guiding members are arranged the one next orward of the other. In the seat illustrated the forward side of the upper portion of the flange 16 of each guiding member of the lower plate is overlapped, centrally between the plates, by the,rearward side of the flange 16 of the adjacent guiding member of the upper plate, and the flanges of each pair of guiding members project in- I wardly so that the flanges of the members ofone of the pairs of guiding members are arranged to prevent rotary movement in a horizontal plane of the upper plate independentl tion, and the flanges of the members of the other pair of guiding members are arranged to prevent rotary movement in said plane of the upper plate independently of the lower plate in the opposite direction.

Each member of each pair of guiding members '10 is provided next the plate carry;- ing it with end flanges 17 abutting against of the lower platein one direcsaid plateandremovably secured by screws 18 to said plate, and the screws that secure one of said guiding members to the lower plate correspond and are alined vertically with the screws securing the other of said guiding members to the upper plate, so as to render said guiding members interchangeable and thereby materially simplify and facilitate the assemblage of the parts.

What I claim is- 1. In a spring-seat, the combination, with two vertically spaced and oppositely arranged substantially horizontal plates the lower of which is adapted to be carried by a supporting member, said plates being relatively movable to reduce the distance between them, and springs supporting the upper platefrom the lower plate, ofa pair of cooperating guiuing members which are secured the one to'the upper/ plate and the other to the lower plate, the guiding member secured to the upper plate projecting vertically downwardly from said upper plate, the guiding member secured to the lower plate projecting vertically upwardly from said lowerplate, said guiding members having their free end, portions arranged side by side and being movable endwise ini dependently of each other and provided between said plates with means adapted to prevent rotary movement in a horizontal plane as well as forward. and rearward movement of the upper plate independently of the lower plate.

2. In a spring-seat, the combination, with two vertically spaced and oppositely arranged substantiall horizontal plates the lower of which is a apted to be carried by. a

supporting member, saidplates-being relatively movable'to reduce the distance. between them, and springs supporting the upper plate from the lower plate, of a pair of substantially vertical cooperating guiding members which are secured the one to the upper plate and the other to the lower plate,

said guiding members being movable endwise independently of each other and Q130- vided between said plates with means adapted to prevent forward and rearward movement oftthe guidingmembers independently of each other, and each guiding member having one side of itsfree end portion overlapping one side of the free end per plate from the lower plate, of a pair of substantially vertical codperating guiding members which are secured the one to the upper plate and the other to the lower plate and have their free end portions arranged side by side, said guiding members belng ranged substantially horizontal plates the lower of which is adapted to be carried by a supporting member, said plates being relatively movable to reduce the distance between them, and springs supporting the upper plate from the lower plate, of two spaced pairs of substantially vertical cooperating guiding members, the members of each' pair of guiding members being movable endwise independently of each other and secured the one to the upper plate and the other to the lower plate, each pair of guidin members being provided between said p ates with means adapted to prevent said plates from moving relatively to increase the distance between the plates, eachguiding member having a flange which extends endwise of said guiding member, the fiar ges of the members of one of the pairs of g. riding members being arranged to prevent rotary movement in a horizontal plane of the upper plate independently of the lower plate in one direction, and the flanges of the other guiding members being arranged to prevent rotary movement in said plane of the upper plate independently of the lower plate in the opposite direction.

5. In a spring-seat, the combination, with two vertically spaced substantially horizontal plates the lower of which is adapted to be carried by a supporting member, said plates being relatively movable to reduce the distance between them, and springs supporting the upper plate from the lower plate, of

- a pair of guiding members which are secured the one to the upper plate and the other to the lower plate, each guiding member projecting from the plate to which it is secured toward and being spaced from the other plate, said guiding members being provided, the one. with a vertically extending slot having an end wall facing said plate, and the other with a projection abutting against said wall, and said slot being arranged to permit movement of the upper plate toward the lower plate.

6. In a spring-seat, the combination, with two vertically spaced substantially horizontal plates the lower of which is adapted to be carried by a supporting member, said plates being relatively movable to reduce the distance between them, and springs supporting the upper plate from the lower plate, of a pair of guiding members which are secured the one to the upper plate and the other to the lower plate, each guiding member projecting vertically from the plate,

to which it is secured toward and being spaced from the other plate, said uiding members being provided, the one wit a vertically extending slot having side walls, and the other with a projection extending into said slot, said slot and said projection being arranged to permit movement of the upper plate toward the lower plate, and the slde walls of said slot and said projection being arranged to prevent movement of the upper plate forwardly and rearwardly independently of the lower plate.

7. In a spring-seat, the combination, with two vertically spaced substantially horizontal plates the lower of which is adapted to be carried by a supporting member, said plates being relatively movable to reduce the distance between them, and springs supporting the upper plate from the lower plate, of a pair of guiding members which are secured the one to the upper plate and the other to the lower plate, each guidlng member projecting from the plate to which it is secured toward and being spaced from the other plate, the free end portions of said guiding members overlapping each other, one of said guiding members being provided between its free end and the plate carrying it with a slot having side walls and an end wall which faces said plate, the other of said guiding members havlng a projection which extends into said slot and abuts against said end wall, and said slot extending substantially vertically from said projection in the direction in which said end wall faces.

In testimony whereof, I sign the foregoing specificatiolg in the presence ofitwo wit- A. W. MASSEY, HELEN M. Donna. 

